F、第四次模擬考進退步R語言輸出結果

## Warning: Removed 16 rows containing non-finite values (stat_count).

## Warning: Removed 4 rows containing missing values (geom_text).

## Warning: Removed 7 rows containing missing values (geom_text).

## Warning: Removed 4 rows containing missing values (geom_text).

## Warning: Removed 1 rows containing missing values (geom_text).

## Warning: Removed 4 rows containing non-finite values (stat_count).

## Warning: Removed 7 rows containing non-finite values (stat_count).

## Warning: Removed 4 rows containing non-finite values (stat_count).

## Warning: Removed 1 rows containing non-finite values (stat_count).

## Warning: Removed 2 rows containing missing values (geom_text).